/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Lucene.Net.Codecs.Bloom
{
    using Util;

    /// <summary>
    /// Base class for hashing functions that can be referred to by name.
    /// Subclasses are expected to provide threadsafe implementations of the hash function
    /// on the range of bytes referenced in the provided {@link BytesRef}
    /// 
    /// @lucene.experimental
    /// </summary>
    public abstract class HashFunction
    {

        /// <summary>
        /// Hashes the contents of the referenced bytes
        /// @param bytes the data to be hashed
        /// @return the hash of the bytes referenced by bytes.offset and length bytes.length
        /// </summary>
        public abstract int Hash(BytesRef bytes);

    }
}